Dance Dance Revolution 3rd Mix (c) 1999 Konami.

>>> TECHNICAL DETAILS
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Main CPU : PSX
Sound Chips : SPU, CD/DA
Palette colors : 65536
Players : 2
Buttons : 6
- SCORING -
Grades : SSS - SS - S - A - B - C - D - E
Every song has a maximum of score of 10,000,000 which can only be attained by getting all Perfects. The point value for any step in a combo depends on three factors :
* The length of your combo does not matter.
* Perfects are worth twice as much as Greats.
* The last step in every song is a little bit more important in terms of score. Try to get a Perfect on the last step.
The exact formula for the score of a combo is...
Let N be the number of steps in the song you are playing. Let [x] be the greatest integer function (i.e., [x] = the greatest integer less than or equal to x). Then define b, the point value on which the point value for every step in the song is based, to be :
b = [1,000,000/(N(N+1)/2)]
Then, the point value for the ith step in a combo is :
S(i) = P(i), if the ith step is a Perfect; G(i) if the ith step is a Great;
P(i) = 10bi;
G(i) = 5bi;
The only step that deviates from this formula is the last step, or Nth step, of the song. If you get a Perfect on the Nth step, you get the appropriate points for that Perfect, plus a bonus B :
B(N) = 10,000,000 - (summation of P(i) as i goes from 1 to N)

>>> GAME SERIES
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1. Dance Dance Revolution (1998)
2. Dance Dance Revolution 2nd Mix (1999)
3. Dance Dance Revolution 2nd Mix with beatmaniaIIDX CLUB VERSiON (1999)
4. Dance Dance Revolution 2nd Mix with beatmaniaIIDX substream CLUB VERSiON 2 (1999)
5. DDR Best of Cool Dancers (1999)
6. Dance Dance Revolution 3rd Mix (1999)
7. Dance Dance Revolution USA (2000)
8. Dance Dance Revolution 3rd Mix Plus (2000)
9. Dance Dance Revolution 4th Mix (2000)
10. Dance Dance Revolution 4th Mix Plus (2000)
11. Dance Dance Revolution 5th Mix (2001)
12. DDR MAX - Dance Dance Revolution 6th Mix (2001)
13. DDR MAX 2 - Dance Dance Revolution 7th Mix (2002)
14. Dance Dance Revolution Extreme (2002)
15. Dance Dance Revolution Extreme 2 (2005, Sony PlayStation 2)
16. Dance Dance Revolution with Mario (2005, Nintendo GameCube)
17. Dance Dance Revolution SuperNOVA (2006)
18. Dance Dance Revolution SuperNOVA 2 (2007)
19. Dance Dance Revolution X (2009)

>>> OTHER GAME RESOURCES
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Game's rom.
Machine's picture.